groupRows
Creates collapsible row groups in a Google Sheet using the Sheets API addDimensionGroup request. Each group specifies a range of rows (1-based, inclusive) to collapse.
This record as markdown: /tools/a-bonus-google-docs-mcp/grouprows.md
What groupRows does on Claude MCP x Google Docs
AI agents use groupRows to create or update resources in Claude MCP x Google Docs, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Claude MCP x Google Docs environment.
Why groupRows is rated Medium
The tool modifies a Google Sheet by adding dimension groups to rows, which changes the sheet's state and presentation. This is a Write operation because it creates/modifies data structure reversibly—row grouping can be undone without data loss. It does not delete data (would be Destructive), execute arbitrary code (would be Execute), or pose financial risk.
From the tool's definition Tool description states it 'Creates collapsible row groups' using the Sheets API 'addDimensionGroup request', which modifies the structure and formatting of a Google Sheet. This is a reversible structural modification (groups can be ungrouped).
Attacks that exploit this kind of access
The rule that runs groupRows safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Claude MCP x Google Docs, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For groupRows, this is the rule to start with:
groupRows stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Claude MCP x Google Docs, apply this rule, and every groupRows call is checked against it from then on.
Questions about groupRows
Creates collapsible row groups in a Google Sheet using the Sheets API addDimensionGroup request. Each group specifies a range of rows (1-based, inclusive) to collapse. It is categorised as a Write tool in the Claude MCP x Google Docs MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Claude MCP x Google Docs MCP server in PolicyLayer and add a rule for groupRows: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Claude MCP x Google Docs. Nothing to install.
groupRows is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the groupRows rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for groupRows. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
groupRows is provided by the Claude MCP x Google Docs MCP server (a-bonus/google-docs-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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